Hospital bedstead



H. K. KHAKIANI 2,437,096

HOSPITAL BEDSTEAD Filed June l11, 1945 5 Sheets-Sheet 1 I y.EEE:EEEEEEEEE l m nli... w

INVENTOR /A/HA/,r/AN/ By ATTOR N EYo March 2, 1948.

March 2, 1948. H. K. KHAKlANl 2,437,095

- HOSPITAL BEDSTEAD Filed June. 1l, 194%I 5 Sheets-Sheet 3 INVENTOR ATToRN EYs March 2, 1948. H. K. KHAKIANI v 2,437,095

l y HOSPITAL BEDSTEAD Filed June 1l, 1945 5 Sheets-Sheet 4 f n xn ca 54 54 ce i Qi E Aa C I "3 ai aa A f c3 M l A'TTO R N EYS March 2, 1948. H.K. KHAKIANI 2,437,096

HOSPITAL BEDSTEAD l v Filed June, 11, 1945 5 sheets-Sheet 5 INVENTOR -H. KKH/1mm Patented Mar. 2, 1948 HOSPITAL BEDSTEAD liessenelly Khakiani Bembo British India Application June 11, 1943, Serial lNo. $0,501

" In British India .June 11, 1942 1l yThis invention Creltutes to imnroremerit il? horspitaig-type hedsstedds Qf thev kindhoyingf@ mgttrees:suppertimev framework. :and .mattress .0f afrtieulatedseotions Whch intheirnolmal. 1m-

horizontally ron said `frorne-wnrkibut .Whih yetre .adapted tov assumeI :various inclinations. relativ@- l-y to. .one another. about; their. .articulations in .orderto g'ivetcertainpf the s andard.

medical andsynaeeologicai '.casres..A

:By :the term marttnessff ismean the 'pr-@sont .speeioaitionfthat surdace` of :the bslta is. 4adopted tov L.support the bedding-of th framework with .the supporting; una .t ofrprovidedahyicrossed or finiterlaoinsmetetl s n .wdresi 4saitsor ,thedilidr atltnough.thematerial from which the .same may fhexmfde gmfyaily- Hospitaletyfne .tzbedsteags oil the. kind Referred i -zto Letrerffilready fknown hymeans o f :Wh-ish eertetin ones. .oniyeof enne. stand-ord positions-required .may he obtained :and `:inpatrztrrulor :the `two ghedstealds known as the Fowlerrandizthe ,cnizdia hedsteaods haveuaflready heen-proposed.. fBQth ,these ;bed. e

steadsv, however, .are ibased :on the '.-construotional -feature that: the` iegfresgt. =(or` seating) `section ,of ithe mattress is aWhollyr,apnltly.directly ,and permanently E.connected4 to. the horizontal. frame- -resneotto-.the said-drameeworkr zi. As. it icennotfbe difted mhoiiyand vnudity.-oerlcroire time same. .trarney,Work. .In .the :Eowlerehedstoad allso,k 'there :is a.

rkneeerestisection l.extenriifrl.g aboye and Supported f ,on ineflegelest section andfomprisj gmzoartieuslated eflaps, the lend goffthat 'linee-,rest ao!) which aistnearest thefheadendroi' the bedstead hengilso .permanently `andditest]ynonneoted to the .iframework. .movement :of .the .mattnessas 'o .whole vthiclfirendors `:it .;impossible, :both in the-Fowler ibedstead aindthe ycardiac zhedstead, to Lolotainnny Vmore than Athe `.three Svirali-known..fliowler .andpcardiac positions.

The present. .invention vhas ...for its main object .to -iprovideean improved fhospitalstype bedstead ,in `Whichdhere may beobtained alarger number-.of standard -positions .than .it 'has :been .possible .here- .iftofore to .obtainin -any-other-.single hedstead .without the .use .of .fsenarateemechanical or nonfrnsohouicelidetiees..

.It-has .fornnother object to-.provifie .an .imlprongedhospitolftimeibedsteadinewlfiiohfhere may :he obtained, withontethe @aid of. anyfsenarotemeit sis I gthe aforesaid-dock .of freedom of.

.triennal .or non-.media er ofthe eosedesr; but also a number of new pos treatment@ patients- It. .has .ier @other @biedt to Biondo w11@- proyed.hosiliteiletynbsd h .te Qbiained et the. .ti

standard positions required for d'y vzkiodilyethe position ',Qfgtiieleg-CrL tsectionwith K sordi... .051.. y kfnown.

zthasfioroet ,aiurtlisrbieot @moi/ideeen inlproved construction of hospital-typce Qqdtgd o medffatnn the,Y rscedngpd.

ained .without-any .unduly wmp.. ztion .Land .mode t0.15: operation .of ther employing suitable means .suenos simplefhanm operated screw means for eiestng all .Inwe- .ments ...and annulations-.0f the evereil. .sections .of the mattress :relatively Ito. :one @mother-rionda@ fthehedsteadfframenwqrk- The variousnoyel,-iearturesdboth i:is :to con- `strilcfion l.imflirioilsl ,principles of *.morementrand 3 parts' which separately, and in combination, form a part of the invention, will be more particularly described and ascertained in and from the following description of a preferred embodimentI of the invention which is given with reference to the accompanying drawings, in which:

Fig. 1 is a diagrammatic perspective View of the constructional mechanism of the bedstead, partly broken away, with the various sections of the articulated mattress in their normal flat or unoperated positions.

Fig. 2 is a perspective view of the constructional mechanism of the bedstead with the several sections of the articulated mattress in one of their v operated positions.

Fig. 3 is a perspective View from above the headend of the bedstead of the constructional mechanism of the latter in another one of the operated positions of the sections of the articulated mattress, showing certain parts of the said mechanism which either are not shown clearly in Figs. 1 and 2 or have been omitted from the latter for the sake of clarity, and

Figs. 4; to 15 show each of the 12 diiferent positions, including the normal unoperated or fiat condition of the bedstead, which may be obtained by means of the construction according to the invention.

In the following description with reference to the drawings, where the terms headend and footend of the bedstead are used, such terms are not to be understood as including any constructional features or limitations on the nature of the bedstead framework. They are merely intended to denote the ends of the bedstead whichy are nearest to the back-rest section and to the footend or knee-rest section of the mattress respectively. In the same way, where the term forward is used, this is merely intended to denote a direction of movement taken from the point of view of the operator from his position at the operating means of the bedstead looking towards the mattress and which, in the embodiment hereinafter to be described, is at the footend of the bedstead, the said forward direction therefore being from the footend towards the headend of the bedstead.

With reference to the aforesaid drawings, the

construction of bedstead illustrated comprises the usual tubular metal headend l and footend 2 which support the usual rectangular mattresssupporting frame-work T. The mattress itself is made up of three articulated sections, namely a back-rest section D articulated at one end on a hinge-rod M to one end of a leg-rest section E. i Extending above and supported on the said legrest section'E is a knee-rest section comprising two iiaps F articulated together about a hingerod F1 and at their other ends to the leg-rest section E.

The said articulated mattress composed of the back-rest section D, the leg-rest section E and the knee-rest section F is therefore without any 4 members of the frame-work T. Between and supported by the said Components 3 and l of the bracket extend three operating screws A, B and C, spaced vertically one above the other, and which are provided for working, through respective force transmitting means in the form of link systems hereinafter to be described, the backrest section D, leg-rest section E and knee-rest section F of the mattress respectively.

As is clearly shown in the drawings, the lowermost operating screw A has mounted on the same an outwardly bottle-shaped metal moulded but internally tubular and threaded traversing block or sleeve Al to which are pivotally connected on either side forwardly extending operating linkrods A2. The said link-rods A2 are connected to the respective ends of a cross-bar D3 to which are also pivotally connected, at each side, two link-rods Dl which are pivotally connected at their other ends respectively to the headend and footend 0f the said back-rest section D as shown in the drawings. The arrangement provides a force transmission system between the screw A and the section D which is such that if the screw A be turned, the threaded sleeve Al is caused to travel forward on the said screw towards the headend of the bedstead and, upon doing so, moves the operating link-rods A2 in the forward direction. These link-rods A2 move the backrest section supporting link-rods DI upwards in a circular movement and the back-rest section D is caused to rotate upwardly from its normal horizontal position about the hinge-joint M which articulates the same to the leg-rest section E. The different operated positions which may be secured by operating the back-rest section from normal in such manner are shown in Figs. 4, 5, 8, 10, 12 and 14 and will be more fully and particularly described hereinafter.

The middle operating screw B has also mounted on the same a bottle-shaped metal moulded inteInally tubular threaded sleeve Bl to which are pivotally connected on either side forwardly eX- tending operating link-rods B2.

The operating link-rods B2 of the screw B are fixed at their forward ends to the respective ends of a cross-bar B6. At its outer ends, the said cross-bar B5 has mounted thereon runner wheels B3 which are adapted to bear and run in respective upwardly inclined wheel-guides or rails B5 secured in a suspended manner to the respective side members of the frame-work T, the direction of inclination of the said wheel-rails or guides B rising towards the headend l of the bedstead as shown. At each side, and intermediate the point of connection of the respective operating linkrods B2 and runner wheel B3, the said cross-bar B6 has pivotally mounted thereon connecting link-rods B4, the upper end of each of which is pivotally connected to a corresponding downwardly depending lug El on the headend of the leg-rest section E, a short distance from the articulation of the said leg-rest section with the back-rest section D about the hinge-rod M.

The topmost operating screw C has also mounted on the same a bottle-shaped metal moulded internally tubular threaded traversing block or sleeve Ci to which are pivotally connected on either side forwardly extending operating linkrods C2. These link-rods are pivotally xed to a cross-bar C5 which in turn is loosely rivetted to the bent-over side members 6 of that nap F of the knee-rest section which is nearest the footend 2 of the beadstead. Each of the'said bent-over side members 6 of the footend flap of the knee rest sectioncarr-ies `a runner wheel C3, each said wheel at the respective side of the knee-rest section being mounted in position a little above the connection of lthe loosely rivetted cross-bar yC- to the corresponding bent-over side ymembertof lthe footend knee-rest flap. Each said runner wheel C3V is adapted to travelin an inclined wheel-rail or guide C4 which issuspended at its two ends from the respective s-ide of the leg-rest section E near the footend of the latter, the direction of inclination of the said wheel-rails or guides C4 rising towards the headend I of the bedstead, as shown.

By this manner of forming and attaching the articulation ,formed by the wheel-rails or guides C4 of the knee-rest section to the footend ofthe leg-rest section E, and not tothe frame-work T of the bedstead, the said knee-rest section retains its possibility of movement relatively to the leg-rest section. E whether the said leg-rest sec-v tion has previously lbeen operated into the longitudinally moved and upwardly tilted `or elevated position or not. Also, .the said leg-rest section retains its independence for both upwardly tilting -and longitudinal movement relatively to the bedstead frame-work when the screw Bi is operated.

When the screw C is operated, this causes the threaded .sleeve CI to travel forward on the said screw towards the headend of the bedstead and, upon doing so, causes the link-rods C2 also to move in the forward direction. These link-rods C2 thereby move the cross-bar C5 in the forward direction `and the runner Wheels C3 travel up the incline of the wheel-rails vor guides Cd, thereby varying theinclination of the two knee-rest flaps F relatively to one another Yand to the leg-rest section E owing to their relative articulations to one another at Fl and to the leg-rest section ,at theheadend of the latter. The knee-rest yflaps F may Vthereby be caused to assume various relative positions of inclination as shown vin Figs. 4, 5, 6, 8, 9 and 11 and which will be more fully and particularly described hereinafter.

1n addition to the constructional features Aalcove-described, the preferred form of bedstead in `accordance with the invention as illustrated in the .drawings also includes, for a purpose which will'hereinafter be more fully 'described with reference to the manner of operation and use of the "bedstead, a stop or abutment means O provided at theheadend A,of the bedstead and which is formed,fas shown, by two vertically spaced paralle] cross-bars l and il interconnected by spaced ,vertical bars lso as to form an abutment or stop which tilts slightly from the bottom towards the footend of the bedstead. This stop serves vthe purpose 'of 'arresting the bodily longitudinal movement of the mattress towards the headend of the bedstead should the same take place, and `after it has taken place over a determined distance, and also of arresting the .circular movement of the 'back-rest section kfrom normal should the 'latter subsequently tend to take place, all as, will be more fully described hereinafter. Alternatively, vertical bars it in the headend l of the bedstead above the said stop O- forma further abutment `means adapted to .perform the same function in dependence upon the degree to which the leg-rest section screw B has been operated, Yalso as will be more fully Vdescribed hereinafter.

However, also as will be more fully described hereinafter, the `upwardly tilted but longitudinally ,moved position of the leg-rest section E may also take place towards the footend of the bedstead and the said preferred construction further includes, at either-side 4of --the` wfootend of -theflegrest section hook holes K-Whereby Aupon such movement occurring the said footend ofthe mattress may be temporarily hooked by clampsK-I to the :bedstead frame-work Tl against any further longitudinal movement relatively to the said frame-work, in order to enable the knee-flap-inclination-varying means thereafter to be operated, -all as and fora-reason `whichw-ill also 'hereina-iter be Ymore fully described.

In the normal position of the `bedsteadas shown in Figs. 1 andl, the three sect-ions of the mattress lare collapsed and substantially flat. The mattress as -a -whole is rested-ly supported at its head and footends on-thecross-members Aof Vthe -bedstead frame-work T-'whil-e it lis supported on the said frame-work intermediate its ends by means of the proiectin-g ends of the 'hin-gerod M about which the yback-restand leg-rest sections D and E respectively are articulated. This normal position Yis obtained "by alli thethree operating screws A, B rand C being operated to move the threaded sleevesA'I, B-l `and Ci toward the footend of the bedstead,- thesleeve CI and related link-rods Cgoperating through the connection with the knee-'rest section F to move the mattress as a whole to suchpposition thatthe headend of the back-rest vsection 'D is spaced from the head-end i and .the lstop O, las shown in Figs. 1 and 15.

Other positions that maybe `ob'tainedwith the bedstead constructed in accordancewith the invention are as follows.: Y

`(1) Fowler (back-rest) positionr No. 1.-"Ihis is shown in 10. With the three operating 'screws'A B `and .C all in their ,normal unopera'ted positions, and therefore with all the sections ,of the bedstead flat asShown ,in vr1 and15,the back-rest section screw A is alone-operated. This moves the sleeves Ai, the levers A2 4and the hangers Di towards the headend of the 'bedsteadgand elevates `the saidback-rest section D by `pivotal movement about its hinge-rod fwith, .thelelgrest section E, Yand 4the ,saidbaCk-.rest section assumes the vertical `position showninFig. lll.

(2) Fowler (knee-,rash position No. V'2.-This is shown in Fig. .11. With the three operating screws A,.B and C `allin their normalunoperated positions, .and therefore with .allthe sectionsof the bedstead flat .asshown in Figs. 1 Aand 15, the knee-rest section screw ,C is alone operated. This moves Athe sleeve OI and, link-rods C2. towards the .headend Yof 4.the .bedstead and .varies .the .inclination of the two flaps F of thelinee-restsection relatively to one another and to the leg-,rest section E, the wheels .C3 :rolling on the `rai-ls Cd andthe said knee-rest flaps assuming` the positions .shown in Fig. 1-1.

(3) Fowle?- (back-rest and knee-rest combined) position N0. 3.-This `is shown iii-Fig. 4k land is simply the combination ofthe Fowler positions Nos. 1 and 2 which is attained Eby lirst:operating the screw A to raise the back-rest section D .and then operating the screw -C to adjust the-kneerest flaps F.

(4) Reversed T1'endelenburgf'positiony No.l 2.- This .is shown in Fig. ,5. Withthe three operating screws A, Band C all in their normal unoperated positions, and therefore with all .the sections of the bedstead vflat as shown in Figs. i and 15, the leg-rest section screw fB is first operated. VThe lmattress aS :a whole is prevented .from moving towards the :headend-'ofthe leedstead lby the knee-rest flaps F and the link-rods Aaarrigosac C2 connecting the leg-rest section with the unoperated sleeve Cl. As the screw B is operated and the adjacent ends of the back-rest section D and the leg-rest section E are raised during the travel of the wheels B3 along the rails B5, the levers B4 in their movement engage the cross bar D3 and swing the back-rest section D upwardly about the hinge-rod M until it assumes a position approximately parallel with the bedstead frame-work T as shown in Fig. 13. The back-rest section screw A is then operated to bring the said back-rest section D into a straight slanting line with the leg-rest section, the slant rising from the footend of the mattress towards the headend thereof as shown in Fig. 5. This is in fact the reversed Trendelenburg position No. l more particularly described with reference to Fig. 14. The footend of the mattress is then locked to the frame-work T by the hooking means K, KI and the knee-rest section-operating screw C operated. The travel of the runner Wheels C3 up the inclined wheel rails or guides Cl then operates the knee-rest iiaps F in the manner previously described and they assume their relative inclinations and the inclinations to the legrest section E shown in Fig. 5.

(5) Trendelenburg position-This is shown in Fig. 6. With the three operating screws A, B and C all in their normal unoperated positions, the knee-rest section-operating screw C is first fully operated. This forms the knee-rest triangle on the leg-rest section in the manner previously described. The leg-rest section screw B is then operated. The leg-rest section E, carrying with it the back-rest section D, moves longitudinally towards the headend I of the bedstead, the headend of the said leg-rest section being at the same time upwardly tilted or elevated and carrying with it the ootend of the back-rest section. The said forward longitudinal movement takes place until the headend of the back-rest section engages against the abutment or stop O and the eiect of such forward movement on the kneerest naps F is to reduce the inclination thereof to about half the maximum in spite of the fully operated condition of the screw C. The combination of the reduced knee-rest triangle thereby formed on the leg-rest section and of the larger triangle formed by the leg-rest section E and back-rest section D on the frame-work T of the bedstead, forms a large triangle with the kneeflaps-hinge-rod F!v at the apex and one of the knee-rest naps F and the back-rest section D forming one side of the triangle and the other knee-rest flap F and the footend of the leg-rest section forming the other side, all as shown in Fig. 6.

Hyperextensz'on position-This is shown in Fig. '7. It may be obtained as -described immediately above with the exception that after the operation above described has been carried out the screw C is turned half-way back in order to cause the reduced knee-rest triangle on the leg-rest section to disappear again as shown in Fig. 7. The single triangle left has then its apex at the hingerod M between the leg-rest section E and the back-rest section D. i

('7) Cardiac chair-like position No. 2.--This is shown in Fig. 8. The operation of the leg-rest section screw B takes place exactly as described with reference to the reversed Trendelenburg position No. 2 shown in Fig. 5. The back-rest section screw A is then operated, to its fullest extent, namely until the operating link-rods A2 abutt against the underside oi the fully operated cross-bar BB and the back-rest section assumes the position shown in Fig. 8. This is in fact the convalescent position No. 1 which is hereinafter referred to in connection with Fig. 12. The footend of the leg-rest section is then locked to the framework T by the hooking means K, KI and the knee-rest section-operating screw C is operated only to the extent shown in Fig. 8 where that flap of the knee-rest section F which is nearest the headend of the bedstead extends substantially parallelly to the frame-work T.

(8) Convalescent position No. 3.-This is shown in Fig. 9.- The operation of the leg-rest section screw B takes place exactly as described with reference to the reversed Trendelenburg position No. 2 shown in Fig. 5. The back-rest section D is raised into the position substantially parallel to the bedstead frame-Work T by engagement of the levers B4 with the cross bar D3, but there is no speciiic operation of the back-rest screw A itself. The footend of the leg-rest section is then locked to the frame-work T by the hooking means K, KI and the knee-rest section operating screw C is operated to bring the knee-rest flaps F into the position shown in Fig. 9.

(9) convalescent position No. 1.-This is shown in Fig. 12. The operation of the leg-rest section screw B takes place exactly as described with reference to the reversed Trendelenburg position No, 2 shown in Fig. 5. The back-rest section screw A is thenoperated, however, to its fullest extent, namely until the operating linkrods A2 abut against the underside of the fully operated cross-bar B5 and the back-rest section assumes the position shown in Fig, 12, the sections D and E being held in position adjacent the footend of the bedstead by the unoperated condition of the knee-rest section screw C and without the employment of the hooking means K, Ki.

(10) Concalescenz. position No. 2.-This is shown in Fig. 13. As previously described, this position of the various sections of the mattress is obtained simply by operating the leg-rest section screw B with the two other operating screws A and C in their normal unoperated positions. In addition to the leg-rest section E being held in position adjacent the footend 2 of the bedstead, with the headend thereof tilted or elevated into the raised position, the back-rest section D with its attendant operating means, due to the engagement of. the levers Bi with the cross bar D3, is also raised bodily from the bedstead framework T while maintaining its normal parallel position thereto. The positions described are maintained by the unoperated condition of the knee-rest section screw C which exerts the previously described restraining and maintaining force on the footend of the leg-rest section E.

(1l) Reversed Trendelenburg position No. 1.- This is shown in Fig. i4. The operation is exactly `as described with reference to the convalescent position No, 2 of Fig. 13 except that the screw A is operated to an extent such that the said back-rest section forms a straight line with the upwardly slanting leg-rest section shown in Fig. 14.

Iclaim:

l. In a hospital-type bedstead installation, the combination of a mattress supporting frame, leg rest and back-rest mattress sections arranged end to end and supported upon said frame, means pivotally connecting the adjacent ends of the sections, operating means for applying a force to the pivoted end of the leg-rest section and tendaaai-309e ing toA move the same inan inclined longitudinal direction, means at `the footend of the leg-rest section to restrain the latter from moving longitudinallyy whereby the force applied by the operating means is rendered effective to `Varialzili elevate the. pivoted end of the leg-rest section, and operating means for moving the back-rest section about said pivot-means.

2. A bedstead as claimed in claim 1 wherein the second mentioned operating means is Opelable to apply a turning force to said back-rest section acting in a direction toward that end of said back-rest section opposite the pivoted end.

3. A bedstead as claimed in `claim i wherein each of said operating means includes an actuating member and link mean-s, :tree from direct pivotal vconnection to said frame and connected at one end to the actuating member and at .the other end rto the related mattress section.

4. In a hospital-type bedstead installation, the combination of a mattress supporting frame, legrest and back-rest mattress sections arranged end-to end. and supported upon said frame, means pivotally connecting .the adjacent ends of the sections, operating means ior applyingV a force to the pivoted end of the leg-rest section and tending to move the same in an inclined longitudinal direction, knee-rest flaps pivotally connected to one another and to said leg-rest Ysection, operating means for varying the inclination f the flaps relatively to one another and to said leg-rest section, said flaps and the related operating means being effective in the normal unoperated condition thereof to restrain longitudinal movement of the leg-rest section whereby the force applied by the rst mentioned operating means is rendered eiiective to variably elevate the pivoted end 'of the leg-rest section.

5. In a hospital-type bedstead installation, the combination of a mattress supporting frame, legrest and back-rest mattress sections arranged end to end above said frame, means pivotally connecting the adjacent ends of the sections, operating means for applying a force tending to move the pivoted end 0f the leg-rest section in an inclined longitudinal direction, knee-rest flaps pivotally connected to one another and to said leg-rest section, operating means for varying the inclination of the flaps relatively to one another and to said leg-rest section, said flaps and the related operating means being effective in the normal unoperated condition thereof to restrain longitudinal movement of the leg-rest section whereby the force applied by the rst mentioned operating means is rendered effective to Variably elevate the pivoted end of the leg-rest section, the Second mentioned operating means being operable to move the back and leg-rest sections as whole toward the foot end of the frame during operation of the first mentioned operating means, and means to lock the leg-rest section to the frame before operation of the operating means for the knee-rest ilaps.

6. In a hospital-type bedstead installation, the combination of a mattress supporting frame, mattress sections supported upon the frame and including a 1egrest section and a knee-rest section disposed above and supported on the legrest section, said knee-rest section including flaps pivotally connected together `and to said leg-rest section, operating means for applying a force to the pivoted end of the leg-rest section tending to move the same in an inclined longitudinal direction, operating means for varying the inclination of the flaps relatively to one another and tof-.said leg-rest section, the second mentioned operating means including membersy effective in the unoperated position thereof to restrain the leg-,rest section from longitudinal movement whereby the force applied by the first mentioned .operating means is rendered effective to variably elevate thev pivoted end of the legrest section. I

7. In a hospital-type bedstead installation, the :combination of a mattress supporting bed frame, mattress sections supported upon said frame and including a leg-rest section and a knee-rest section disposed above and supported on the leg-rest section, said knee-rest section including flaps pivotally connected together and to said legrest section, operating means for moving the end of the leg-rest section nearest `the headend of the bed frame to cause said legrest section to bodily 4assume positions inclined upwardly toward the headend thereof, operating means for varying the inclination of the ilaps relatively to one another and to saidleg-,rest section, i

8. A. bedstead as claimedv in claim '7 wherein each of said operating Ameans includes an operating screw mounted on said frame.

A9. In a hospital-typebedstead installation, the combination of a mattress supporting bed frame, leg-rest and back-rest mattress sections arranged end to end and supported upon said frame, means pivotally connecting the adjacent ends of the sections, operating means for applying a force to the pivoted end of the leg-rest section tending to move the same in an inclined longitudinal direction, and operating means for moving the back-rest section about said pivot means, the first mentioned operating means being eiective, when the second mentioned operating means is in unoperated condition, to move both sections longitudinally toward the head of the bed frame and to simultaneously move their pivoted ends upwardly.

10. A bedstead as claimed in claim 9 wherein abutment means is provided for engagement by the headend of the back-rest section to limit the movement of the sections toward the head of the bed frame.

11. A bedstead as claimed in claim 9 provided with knee-rest flaps pivoted together and to the leg-rest section, operating means for moving the flaps at an inclination to each other and to the leg-rest section, the third mentioned operating means and flaps being effective, in the unoperated condition thereof, to restrain the leg-rest section from longitudinal movement, and means to lock the leg-rest section to the bed frame to condition the flap operating means for operation.

12. In a hospital-type bedstead installation, the combination of a mattress supporting bed frame, leg-rest and back-rest mattress sections arranged end to end and supported for longitudinal movement upon said frame, means pivotally connecting the adjacent ends of the sections, links pivoted to the pivoted end of the leg-rest section, runner wheels at the ends of the links, inclined guides for said wheels supported by said frame, an operating screw carried by the frame, a threaded sleeve tted on said screw, links connecting said sleeve with the wheeled ends of the rst links, and abutment means yat the headend of the frame for 1imiting the longitudinal movement of the sections in the direction of the headend of the bed frame.

13. In .a hospital-type bedstead installation, the combination of a mattress supporting frame,

aeezoo 11 a. legrest section supported upon the frame, Ve. knee-rest section pivotally connected at one end to the leg-rest section and including flaps pivotally connected together, pivoted links depending from one end of thethe leg-rest sections, runner wheels at the ends of the links, inclined guides for said wheels supported on said frame, an operating screw mounted on the frame, a sleeve threaded on said screw, links connecting the sleeve with the wheeled ends of the first links,

lrunner wheels on the flaps at the opposite end of the knee-rest section, inclined guides for the second wheels wholly supported by the leg-rest section, a second operating screw mounted on the frame, a sleeve threaded on the second screw, and link means connecting the second sleeve with the last mentioned end of the knee-rest section whereby during manipulation of the second screw the second wheels are caused to roll along the related guides to Vary the inclination of the flaps relatively to one another and to said leg-rest section.

14. A bedstead as claimed in claim 13 provided with a back-rest section Ysupported upon the frame, means pivotally connecting the adjacent ends of the back and leg-rest sections, the first links beingrconnected with the leg-rest section 12 adjacent said pivot means, and means for moving the back-rest section about said pivot means.

15. A bedstead as claimed in claim 13 provided with means for releasably locking the leg-rest section against movement longitudinally of the frame.

HASSANALLY KHIMJI KHAKIANI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

